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#92729b;border-radius:8px;background:#f5edf8;padding:12px 18px;color:#593165;font:inherit;cursor:pointer}.hw-studio .billing-paid-export:disabled{opacity:.5;cursor:wait}@media(max-width:850px){.billing-plans{grid-template-columns:1fr;max-width:540px;margin:40px auto 20px;gap:30px}.billing-notes{grid-template-columns:1fr;gap:16px}.billing-plan>p{min-height:0}.billing-free{align-items:flex-start;flex-direction:column;gap:15px}.billing-intro{margin-top:40px}.billing-page{padding:24px 20px 55px}.billing-balance strong{margin-left:0}.hw-header .billing-studio-link{font-size:11px}.billing-orders li{flex-wrap:wrap}}@media(max-width:640px){.hw-header .site-account{display:none}.hw-header .billing-studio-link{font-size:11px;flex-shrink:0}}.billing-page{max-width:1180px}.billing-export-action.is-compact{display:inline-flex;flex-direction:column;vertical-align:middle;max-width:260px;margin:0}.billing-export-action.is-compact>.billing-paid-export{width:auto;min-height:32px;padding:6px 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70%);will-change:opacity;pointer-events:none}.billing-sparkles{position:absolute;inset:0;opacity:0;pointer-events:none}.billing-sparkles i{position:absolute;left:var(--x);top:var(--y);width:var(--s);height:var(--s);background:var(--c);clip-path:polygon(50% 0,62% 38%,100% 50%,62% 62%,50% 100%,38% 62%,0 50%,38% 38%);animation:billing-twinkle 2.8s ease-in-out var(--d) infinite;will-change:transform,opacity}@keyframes billing-twinkle{0%,to{opacity:.25;transform:scale(.5)}50%{opacity:1;transform:translateY(-10px) scale(1.15) rotate(25deg)}}.billing-book-view{position:absolute;inset:0;perspective:1500px;perspective-origin:50% 0%;pointer-events:none}.billing-book{position:absolute;left:50%;bottom:-150px;width:1100px;height:420px;transform-origin:50% 100%;transform-style:preserve-3d;transform:translate3d(-50%,0,0) rotateX(60deg)}.billing-book-body{position:absolute;inset:0;transform-style:preserve-3d}.billing-book-base{position:absolute;inset:-16px 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38%),radial-gradient(circle at 76% 78%,#ffb7d533,transparent 40%),#5a3470;color:#fbe3c2;transform:rotateY(180deg);backface-visibility:hidden;box-shadow:inset 0 0 0 10px #4a2b60,inset 0 0 0 12px #f0c27a66}.billing-book-cover b{font:500 56px/1 Georgia,"Noto Serif SC",serif}.billing-book-cover small{font-size:18px;letter-spacing:.3em}.billing-book-cover em{color:#f0c27a;font-style:normal;letter-spacing:.4em}.billing-book-light{position:absolute;left:50%;top:-10%;width:760px;height:120%;margin-left:-380px;opacity:0;background:radial-gradient(ellipse 42% 52% at 50% 50%,#fffbe6,#ffd27acc 30%,#ff9fcf55 56%,transparent 72%);transform:translateZ(2px)}.billing-plans{position:absolute;top:26px;left:50%;width:1140px;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;margin:0;align-items:stretch;transform:translate(-50%);transform-origin:50% 0}.billing-stage .billing-plan{pointer-events:none}.billing-stage[data-ready=true] 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0;display:grid;gap:10px}.billing-download-history li{border-top:1px solid #ebe5da;padding-top:10px}.billing-history-file{display:grid;gap:5px;text-align:left;width:100%;padding:8px 0;font-size:13px;overflow-wrap:anywhere}.billing-history-file small{color:#817a70;font-size:11px}.billing-free-learn{display:inline-block;margin-top:12px;color:#a44931;font-size:13px;text-underline-offset:4px}.billing-free-learn:focus-visible{outline:2px solid #a44931;outline-offset:4px}.billing-intro h1>span{display:block;text-wrap:balance}.billing-plan .billing-pass-name{display:block;margin-top:4px}.purchase-confirmation{width:min(560px,calc(100vw - 32px));max-height:calc(100dvh - 40px);overflow:auto;box-sizing:border-box;border:1px solid #ddd6c7;border-radius:18px;padding:30px;background:#fcf9f2;color:#293125;font:14px/1.7 system-ui,sans-serif;box-shadow:0 20px 80px 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